Dock insert



FIG. 1 is a top front perspective view of a dock insert showing our new design;

FIG. 2 is a bottom rear perspective view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a right side view thereof; and,

FIG. 8 is a left side view thereof.

The broken lines in the Figures show portions of the dock insert which form no part of the claimed design. The shade lines in the Figures show contour and not surface ornamentation. 

CLAIM The ornamental design for a dock insert, as shown and described. 